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| author | J. German Rivera <German.Rivera@freescale.com> | 2014-06-23 15:15:52 -0700 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2014-07-03 08:40:31 +0200 |
| commit | 0d031e046c962ffa94449d398d573c3dec7fb3bd (patch) | |
| tree | 2253d5dbb08b3a6f4ca77bd39984e9f4b08b94cd /arch/arm | |
| parent | 261d27605c70f5c7644686df25ce76adf80a7a21 (diff) | |
| download | u-boot-imx-0d031e046c962ffa94449d398d573c3dec7fb3bd.zip u-boot-imx-0d031e046c962ffa94449d398d573c3dec7fb3bd.tar.gz u-boot-imx-0d031e046c962ffa94449d398d573c3dec7fb3bd.tar.bz2 | |
Added 64-bit MMIO accessors for ARMv8
This is needed for accessing peripherals with 64-bit MMIO registers,
from ARMv8 processors.
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/io.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index 9f35fd6..214f3ea 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -70,10 +70,12 @@ static inline phys_addr_t virt_to_phys(void * vaddr) #define __arch_getb(a) (*(volatile unsigned char *)(a)) #define __arch_getw(a) (*(volatile unsigned short *)(a)) #define __arch_getl(a) (*(volatile unsigned int *)(a)) +#define __arch_getq(a) (*(volatile unsigned long long *)(a)) #define __arch_putb(v,a) (*(volatile unsigned char *)(a) = (v)) #define __arch_putw(v,a) (*(volatile unsigned short *)(a) = (v)) #define __arch_putl(v,a) (*(volatile unsigned int *)(a) = (v)) +#define __arch_putq(v,a) (*(volatile unsigned long long *)(a) = (v)) extern inline void __raw_writesb(unsigned long addr, const void *data, int bytelen) @@ -123,10 +125,12 @@ extern inline void __raw_readsl(unsigned long addr, void *data, int longlen) #define __raw_writeb(v,a) __arch_putb(v,a) #define __raw_writew(v,a) __arch_putw(v,a) #define __raw_writel(v,a) __arch_putl(v,a) +#define __raw_writeq(v,a) __arch_putq(v,a) #define __raw_readb(a) __arch_getb(a) #define __raw_readw(a) __arch_getw(a) #define __raw_readl(a) __arch_getl(a) +#define __raw_readq(a) __arch_getq(a) /* * TODO: The kernel offers some more advanced versions of barriers, it might @@ -139,10 +143,12 @@ extern inline void __raw_readsl(unsigned long addr, void *data, int longlen) #define writeb(v,c) ({ u8 __v = v; __iowmb(); __arch_putb(__v,c); __v; }) #define writew(v,c) ({ u16 __v = v; __iowmb(); __arch_putw(__v,c); __v; }) #define writel(v,c) ({ u32 __v = v; __iowmb(); __arch_putl(__v,c); __v; }) +#define writeq(v,c) ({ u64 __v = v; __iowmb(); __arch_putq(__v,c); __v; }) #define readb(c) ({ u8 __v = __arch_getb(c); __iormb(); __v; }) #define readw(c) ({ u16 __v = __arch_getw(c); __iormb(); __v; }) #define readl(c) ({ u32 __v = __arch_getl(c); __iormb(); __v; }) +#define readq(c) ({ u64 __v = __arch_getq(c); __iormb(); __v; }) /* * The compiler seems to be incapable of optimising constants @@ -168,9 +174,11 @@ extern inline void __raw_readsl(unsigned long addr, void *data, int longlen) #define out_arch(type,endian,a,v) __raw_write##type(cpu_to_##endian(v),a) #define in_arch(type,endian,a) endian##_to_cpu(__raw_read##type(a)) +#define out_le64(a,v) out_arch(q,le64,a,v) #define out_le32(a,v) out_arch(l,le32,a,v) #define out_le16(a,v) out_arch(w,le16,a,v) +#define in_le64(a) in_arch(q,le64,a) #define in_le32(a) in_arch(l,le32,a) #define in_le16(a) in_arch(w,le16,a) |